EP1544848A3 - Audio enhancement in coded domain - Google Patents

Audio enhancement in coded domain Download PDF

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Publication number
EP1544848A3
EP1544848A3 EP04029839A EP04029839A EP1544848A3 EP 1544848 A3 EP1544848 A3 EP 1544848A3 EP 04029839 A EP04029839 A EP 04029839A EP 04029839 A EP04029839 A EP 04029839A EP 1544848 A3 EP1544848 A3 EP 1544848A3
Authority
EP
European Patent Office
Prior art keywords
parameter
parameter value
value
enhanced
index
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP04029839A
Other languages
German (de)
French (fr)
Other versions
EP1544848A2 (en
EP1544848B1 (en
Inventor
Päivi Valve
Antti Pasanen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nokia Oyj
Original Assignee
Nokia Oyj
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US10/803,103 external-priority patent/US7613607B2/en
Application filed by Nokia Oyj filed Critical Nokia Oyj
Priority to EP20040029839 priority Critical patent/EP1544848B1/en
Publication of EP1544848A2 publication Critical patent/EP1544848A2/en
Publication of EP1544848A3 publication Critical patent/EP1544848A3/en
Application granted granted Critical
Publication of EP1544848B1 publication Critical patent/EP1544848B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/16—Vocoder architecture
    • G10L19/173—Transcoding, i.e. converting between two coded representations avoiding cascaded coding-decoding
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/0316—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude
    • G10L21/0364—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude for improving intelligibility

Landscapes

  • Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Quality & Reliability (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

Method and apparatus for enhancing a coded audio signalcomprising indices which represent audio signal parameters which comprise at least a first parameter representing a first characteristic of speech are disclosed. A current first parameter value is determined from an index corresponding to at least the first parameter. The current first parameter value is adjusted in order to achieve an enhanced first characteristic, thereby obtaining an enhanced first parameter value. A new index value is determined from a table relating index values to at least first parameter values, such that a new first parameter value corresponding to the new index value substantially matches the enhanced first parameter value.
EP20040029839 2003-12-18 2004-12-16 Audio enhancement in coded domain Not-in-force EP1544848B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20040029839 EP1544848B1 (en) 2003-12-18 2004-12-16 Audio enhancement in coded domain

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
EP03029182 2003-12-18
EP03029182 2003-12-18
US10/803,103 US7613607B2 (en) 2003-12-18 2004-03-18 Audio enhancement in coded domain
US803103 2004-03-18
EP20040029839 EP1544848B1 (en) 2003-12-18 2004-12-16 Audio enhancement in coded domain

Publications (3)

Publication Number Publication Date
EP1544848A2 EP1544848A2 (en) 2005-06-22
EP1544848A3 true EP1544848A3 (en) 2005-09-21
EP1544848B1 EP1544848B1 (en) 2010-01-20

Family

ID=34527388

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20040029839 Not-in-force EP1544848B1 (en) 2003-12-18 2004-12-16 Audio enhancement in coded domain

Country Status (1)

Country Link
EP (1) EP1544848B1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060217972A1 (en) * 2005-03-28 2006-09-28 Tellabs Operations, Inc. Method and apparatus for modifying an encoded signal
US20070160154A1 (en) * 2005-03-28 2007-07-12 Sukkar Rafid A Method and apparatus for injecting comfort noise in a communications signal
US8874437B2 (en) 2005-03-28 2014-10-28 Tellabs Operations, Inc. Method and apparatus for modifying an encoded signal for voice quality enhancement
WO2007064256A2 (en) * 2005-11-30 2007-06-07 Telefonaktiebolaget Lm Ericsson (Publ) Efficient speech stream conversion
WO2009029076A1 (en) 2007-08-31 2009-03-05 Tellabs Operations, Inc. Controlling echo in the coded domain
CN102726034B (en) 2011-07-25 2014-01-08 华为技术有限公司 A device and method for controlling echo in parameter domain
US10056080B2 (en) * 2016-10-18 2018-08-21 Ford Global Technologies, Llc Identifying contacts using speech recognition
CN109286470B (en) * 2018-09-28 2020-07-10 华中科技大学 Scrambling transmission method for active nonlinear transformation channel

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999040569A2 (en) * 1998-02-09 1999-08-12 Nokia Networks Oy A decoding method, speech coding processing unit and a network element
EP1081684A2 (en) * 1999-09-01 2001-03-07 Sony Corporation Method for editing a subband encoded audio signal
WO2003098598A1 (en) * 2002-05-13 2003-11-27 Conexant Systems, Inc. Transcoding of speech in a packet network environment

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999040569A2 (en) * 1998-02-09 1999-08-12 Nokia Networks Oy A decoding method, speech coding processing unit and a network element
EP1081684A2 (en) * 1999-09-01 2001-03-07 Sony Corporation Method for editing a subband encoded audio signal
WO2003098598A1 (en) * 2002-05-13 2003-11-27 Conexant Systems, Inc. Transcoding of speech in a packet network environment

Also Published As

Publication number Publication date
EP1544848A2 (en) 2005-06-22
EP1544848B1 (en) 2010-01-20

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